![US Open 2021: Oldie Karlovic and Youngster Rune after qualifying against Rublev and Djokovic · tennisnet.com US Open 2021: Oldie Karlovic and Youngster Rune after qualifying against Rublev and Djokovic · tennisnet.com](https://www.tennisnet.com/fileadmin/_processed_/9/2/csm_quali-karlovic_f8c49f7c15.jpg)
US Open 2021: Oldie Karlovic and Youngster Rune after qualifying against Rublev and Djokovic · tennisnet.com
![Croatia's Ivo Karlovic celebrates after winning the second set against Italy's Thomas Fabbiano in a Men's singles match during day three of the Wimbledon Tennis Championships in London, Wednesday, July 3, 2019. ( Croatia's Ivo Karlovic celebrates after winning the second set against Italy's Thomas Fabbiano in a Men's singles match during day three of the Wimbledon Tennis Championships in London, Wednesday, July 3, 2019. (](https://c8.alamy.com/comp/2MJKCY4/croatias-ivo-karlovic-celebrates-after-winning-the-second-set-against-italys-thomas-fabbiano-in-a-mens-singles-match-during-day-three-of-the-wimbledon-tennis-championships-in-london-wednesday-july-3-2019-ap-photokirsty-wigglesworth-2MJKCY4.jpg)
Croatia's Ivo Karlovic celebrates after winning the second set against Italy's Thomas Fabbiano in a Men's singles match during day three of the Wimbledon Tennis Championships in London, Wednesday, July 3, 2019. (
![Ivo Karlovic Croatia Returns Shot Vasek Pospisil Canada First Match – Stock Editorial Photo © ChinaImages #237317710 Ivo Karlovic Croatia Returns Shot Vasek Pospisil Canada First Match – Stock Editorial Photo © ChinaImages #237317710](https://st4.depositphotos.com/21607914/23731/i/1600/depositphotos_237317710-stock-photo-ivo-karlovic-croatia-returns-shot.jpg)
Ivo Karlovic Croatia Returns Shot Vasek Pospisil Canada First Match – Stock Editorial Photo © ChinaImages #237317710
![Fabio Fognini from Italy serves the ball to Ivo Karlovic, of Croatia during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Jan. 4, 2010. Ivo Karlovic won 6-4, 6-4. (AP Fabio Fognini from Italy serves the ball to Ivo Karlovic, of Croatia during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Jan. 4, 2010. Ivo Karlovic won 6-4, 6-4. (AP](https://l450v.alamy.com/450v/2nehn0c/ivo-karlovic-of-croatia-serves-the-ball-to-fabio-fognini-from-italy-during-the-qatar-atp-open-tennis-tournament-in-doha-qatar-monday-jan-4-2010-ivo-karlovic-won-6-4-6-4-ap-photohassan-ammar-2nehn0c.jpg)
Fabio Fognini from Italy serves the ball to Ivo Karlovic, of Croatia during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Jan. 4, 2010. Ivo Karlovic won 6-4, 6-4. (AP
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